An inline small form-factor optical branching assembly

Abstract

An online small structure optical branching component, a fixing member is provided with an optical device mounting groove and an optical component mounting groove, the optical device mounting groove nests an optical branching device, the optical component includes output end optical cables, a plurality of output end optical cables in the optical component are crimped and arranged and nested in corresponding optical component mounting grooves, one end of the optical branching device is connected with an input end optical cable, and optical fibers at the other end are connected with corresponding output end optical cables; the fixing member, the optical branching device and the optical component are sleeved with a sleeve outside, and the input end optical cable and the output end optical cable are respectively fixed at two ends of the fixing member. The application adopts multi-core optical cable crimping technology, groups a plurality of optical cables, crimps each group of optical cables, and improves the arrangement density of the optical cables; therefore, the application has small volume and high optical cable arrangement density. The fixing of the optical cable adopts crimping technology, avoids the failure problem of potting glue, and has higher reliability. The application has simple assembly process, no blind area and easy operation.

Description

Technical Field

[0001] This invention belongs to the field of optical splitter technology, specifically relating to an online small-structure optical splitter assembly. Background Technology

[0002] Most existing circular in-line optical splitter components are implemented in the form of splitters, such as... Figures 11 to 12 As shown, the optical splitter and its two sides of optical cables are encapsulated inside the splitter. The splitter includes a splitter sleeve and a connector sleeve, such as... Figure 12 As shown, inside the splitter, a PLC-type optical splitter, input optical cable, and output optical cable are fixed with potting compound. This circular inline optical splitter assembly has the following problems:

[0003] 1) Large size: Optical cables have low density and relatively large size;

[0004] 2) High process difficulty: During the axial fastening process of the splitter sleeve and connector sleeve, it is very easy to cause excessive bending or fiber breakage of the bare optical fiber inside both.

[0005] 3) Low reliability: (1) The bonding strength of the bare optical fibers inside the optical cable and splitter depends on the adhesive used. The adhesive is prone to decrease or loss of bonding strength under environmental conditions such as temperature shock, extreme temperature, damp heat, strong vibration, and radiation, which can lead to reduced optical performance of the components or fiber breakage; (2) During the glue pouring process, cavities are easily formed inside the glue. During the glue curing process, under low air pressure or thermal vacuum conditions, the cavity will exert stress on the surrounding bare optical fibers, causing damage or local micro-bending of the optical fibers and reducing product reliability; (3) There are blind spots in the installation and operation process of the splitter structure. The internal optical fiber status is unknown, and it is not easy to detect the micro-bending, stress and other conditions of the optical fibers. Summary of the Invention

[0006] To address the aforementioned technical problems, this invention provides an online small structure optical splitter assembly.

[0007] The objective of this invention is achieved through the following technical solution. An online small-structure optical splitter assembly according to this invention includes an input optical cable at the front end, an optical splitter, and an output optical cable at the rear end. It also includes a fixing component and an optical assembly. The fixing component is provided with optical device mounting slots and optical assembly mounting slots. The optical device mounting slots nest the optical splitter. The optical assembly includes an output optical cable. Multiple output optical cables in the optical assembly are crimped and nested in corresponding optical assembly mounting slots. One end of the optical splitter is connected to the input optical cable, and the optical fiber at the other end is connected to the corresponding output optical cable. A sleeve is fitted around the fixing component, the optical splitter, and the optical assembly. The input optical cable and the output optical cable are respectively fixed to both ends of the fixing component.

[0008] Furthermore, a cover plate is fixed above the optical device mounting slot.

[0009] Furthermore, the optical fiber of the optical splitter passes through the fiber optic cabling area on the fixing component and is connected to the corresponding output optical cable.

[0010] Furthermore, the optical splitter assembly includes multiple optical components, and the fixing member is provided with multiple optical component mounting slots. Multiple optical component mounting slot groups are arranged sequentially from the front end to the rear end on the fixing member. Each optical component mounting slot group includes at least one optical component mounting slot, and the positions of the multiple optical component mounting slot groups are staggered from each other in a direction perpendicular to the arrangement direction of the optical component mounting slot groups.

[0011] Furthermore, a cover is placed over the mounting slot of the optical component and a corresponding pressure plate is fixed thereon.

[0012] Furthermore, the rear end of the fixing member is provided with an output end clustering slot, the output end optical cable passes through the output end clustering slot, the output end clustering slot, the optical component mounting slot near the output end clustering slot, the output end optical cable, and the corresponding cover on the pressure plate are fastened together and fixed on the fixing member.

[0013] Furthermore, the front end of the fixing member is provided with an input end clustering groove and a positioning structure. The input end optical cable is nested in the positioning groove of the input end clustering groove and the positioning structure. The input end fastening cover is covered on the input end clustering groove and the positioning structure and is fixed on the fixing member.

[0014] Furthermore, the fastener and the front end of the input end fastening cover are provided with an input end flange, and an armored bundle tube is sleeved on the input end optical cable. The armored bundle tube passes through the input end flange and is connected to the input end flange. A protective crimping sleeve is provided on the rear end of the armored bundle tube and the outer side of the front end of the input end flange.

[0015] Furthermore, the rear end of the sleeve is connected to the output flange, and an elastic protective element is sleeved on the outside of the output optical cable and passes through the output flange. A gasket is provided between the front end face of the output flange and the fixed rear end face, and the front end of the spring is bent and placed between the gasket and the front end face of the output flange. After the output flange and the sleeve are connected by threads, the spring, gasket and fixing element are pressed together.

[0016] Furthermore, a positioning key is provided on the front end face of the fastener, and a keyway is provided on the inner wall of the front end of the sleeve, with the positioning key nested in the keyway; multiple circumferential binding and fixing grooves are distributed on the outer wall of the sleeve along the length direction.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] This invention employs multi-core optical cable crimping technology, which groups multiple optical cables and crimps each group of optical cables, thereby increasing the optical cable density. Therefore, this invention is small in size and has a high optical cable density.

[0019] The optical cable is fixed using crimping technology to avoid the failure of the potting compound; key processes such as the installation and fixing of the optical splitter, fiber optic cable laying, installation and fixing of the input optical cable, and installation and fixing of the four-core optical assembly are visualized and have no blind spots, avoiding increased loss or fiber breakage caused by blind spots in the assembly of the splitter structure type; therefore, the present invention has higher reliability.

[0020] One end of the optical splitter is connected to the input optical cable, and the optical fiber at the other end of the optical splitter is inserted into the optical component. The optical splitter and optical component are nested in the corresponding positions in the fixing component, and structural components such as covers and pressure plates are installed to complete the internal assembly of the optical splitter component. Then, the fixed optical splitter, optical component and fixing component are inserted into the sleeve as a whole. The assembly process is simple, has no blind spots and is easy to operate.

[0021] The above description is merely an overview of the technical solution of the present invention. In order to better understand the technical means of the present invention and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of an embodiment of the present invention;

[0023] Figure 2a Figure 1 A schematic diagram after removing the input end protection component, sleeve, and output end protection component;

[0024] Figure 2b for Figure 2a A bottom view;

[0025] Figure 2c for Figure 2a Top view;

[0026] Figure 3 for Figure 1 Cross-sectional view of the optical cable protection component at the input end;

[0027] Figure 4 for Figure 1 Cross-sectional view of the optical cable protection component at the output end;

[0028] Figure 5 for Figure 2a A schematic diagram of a four-core optical module;

[0029] Figure 6 for Figure 5 Schematic diagram of a four-core crimp sleeve;

[0030] Figure 7a for Figure 2cA three-dimensional view of the three-stage snap-fit ​​lid;

[0031] Figure 7b for Figure 7a A stereoscopic view from another perspective;

[0032] Figure 8a for Figure 2a A three-dimensional view of the input terminal cover being snapped shut;

[0033] Figure 8b for Figure 8a A stereoscopic view from another perspective;

[0034] Figure 9a for Figure 2a A three-dimensional view of the central fixing component;

[0035] Figure 9b for Figure 9a A stereoscopic view from another perspective;

[0036] Figure 10a for Figure 1 A three-dimensional view of the middle sleeve;

[0037] Figure 10b for Figure 10a A partial stereoscopic view from another perspective;

[0038] Figure 11 This is a schematic diagram of a circular in-line optical splitter assembly in the prior art;

[0039] Figure 12 for Figure 11 A sectional view.

[0040] [Attached image labels]

[0041] 1-Input fiber optic cable, 2-Splitter, 201-Connecting sleeve, 202-Split sleeve, 203-Potentacling adhesive, 3-Output fiber optic cable, 4-Input protective component, 401-Armored bundle tube, 402-Protective crimp sleeve, 403-Input flange, 5-Sleeve, 501-Bundling and fixing groove, 502-Keyway, 6-Output protective component, 601-Output flange, 602-Spring, 603-Gasket, 7-Fixing component, 701-Fixing part, 70101-Input bundle slot, 70102- Positioning structure, 70103-Optical device mounting slot, 70104-Fiber laying area, 70105-Optical component mounting slot, 70106-Output end bundled slot, 70107-Positioning key, 702-Fixing cover plate, 703-First-level pressure plate, 704-Second-level pressure plate, 705-Third-level snap-fit ​​cover, 706-Third-level pressure plate, 707-Input end snap-fit ​​cover, 708-Input end crimp sleeve, 8-Optical splitter, 801-Fiber optic cable, 9-Four-core optical component, 901-Four-core crimp sleeve, 90101-Crimp guide slot. Detailed Implementation

[0042] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0043] An embodiment of the present invention, namely an online small structure optical splitter assembly, is as follows: Figures 1 to 10b As shown, the component includes an input optical cable 1, an output optical cable 3, an input protective component 4, a sleeve 5, an output protective component 6, a fixing component 7, an optical splitter 8, and a four-core optical component 9. The component has the input optical cable 1 side as the front end and the output optical cable 1 side as the rear end.

[0044] One end of the optical splitter 8 is connected to the input optical cable 1, and the other end passes through its own optical fiber 801 into the four-core optical component 9. The optical splitter 8 and the four-core optical component 9 are mounted on the fixing component 7. The four-core optical component 9 includes four output optical cables 3, the rear ends of which extend out of the fixing component 7. The optical splitter 8, the four-core optical component 9, and the fixing component 7 are fitted with sleeves 5. An input end protective component 4 is fitted on the input optical cable 1 and fixed to one end of the fixing component 7 to protect the input optical cable 1. An output end protective component 6 is fitted on the output optical cable 3 and fixed to one end of the fixing component 7 to protect the output optical cable 3.

[0045] The fixing component 7 includes a fixing member 701, a fixing cover plate 702, a primary pressure plate 703, a secondary pressure plate 704, a tertiary fastening cover 705, a tertiary pressure plate 706, and an input end fastening cover 707. The fixing member 701 is a semi-cylinder, which is formed by a plane and an arc surface and extends from the front end to the rear end. The structures on the fixing member 701 from the front end to the rear end are, in sequence, an input end clustering slot 70101, a positioning structure 70102, an optical device mounting slot 70103, a fiber optic area 70104, an optical component mounting slot 70105, and an output end clustering slot 70106.

[0046] The input-end clustering slot 70101 extends along the length of the fixing member 701, with its opening located on the plane of the fixing member 701 and one end located on the end face of the fixing member 701. The cross-section of the input-end clustering slot 70101 is arc-shaped to facilitate the nesting of optical cables. The positioning structure 70102 includes a positioning groove connecting the input-end clustering slot 70101 and the optical device mounting slot 70103. Through holes for installing the input-end fastening cover 707 are provided on both sides of the positioning groove. After the input optical cable 1 is placed into the input-end clustering slot 70101 and the positioning groove, the input-end fastening cover 707 is placed over the input-end clustering slot 70101 and the positioning structure 70102, so that the input-end fastening cover 707 and the corresponding part of the fixing member 701 are combined to form a cylinder. The input optical cable 1 is a single-core structure. Before being nested into the positioning groove, an input end crimp sleeve 708 is fitted onto the input optical cable 1. Then, the input end crimp sleeve 708 is nested into the positioning groove. After the input end fastening cover 707 is installed, it is tightened to fix the input end crimp sleeve 708, thereby fixing the input optical cable 1. The side of the input end fastening cover 707 facing the fixing member 701 has a threaded hole corresponding to the position of the through hole on the positioning structure 70102. After the input end fastening cover 707 covers the input end bundled groove 70101 and the positioning structure 70102, screws are used to pass through the through holes on the positioning structure 70102 in sequence and screwed into the threaded holes on the input end fastening cover 707 to securely install the input end fastening cover 707 and the positioning structure 70102. A groove is provided at the corresponding position of the input end fastening cover 707 and the input end clustering groove 70101. This groove and the input end clustering groove 70101 form a circular cavity to accommodate the input end optical cable. The position of the input end fastening cover 707 corresponding to the positioning structure 70102 is flat. After the input end fastening cover 707 is installed, the input end crimping sleeve 708 and the input end optical cable 1 are firmly pressed into the groove of the positioning structure 70102.

[0047] An optical splitter 8 is installed in the optical device mounting slot 70103. In this embodiment, the optical splitter 8 is a PLC-type optical splitter device. Threaded holes are provided on the fixing members 701 on both sides of the optical device mounting slot 70103. After the optical splitter 8 is installed in the optical device mounting slot 70103, a fixing cover plate 702 is placed over the optical splitter 8. The fixing cover plate 702 has through holes corresponding to the threaded holes on both sides of the optical device mounting slot 70103. After the fixing cover plate 702 is placed over the optical splitter 8, screws are screwed through the through holes on the fixing cover plate 702 into the threaded holes on the fixing members 701, thus fixing the fixing cover plate 702 to the fixing members 701, thereby firmly installing the optical splitter 8 in the optical device mounting slot 70103.

[0048] The optical fiber 801 on the optical splitter 8 passes through the fiber distribution area 70104 and then enters the four-core optical component 9, connecting with the corresponding output optical cable in the four-core optical component 8. Each four-core optical component 9 includes four output optical cables and a four-core crimp sleeve 901. The four output optical cables are tightly fitted and stacked into two layers, and the four-core crimp sleeve 901 is fitted over the four output optical cables. The inner wall of the four-core crimp sleeve 901 is adapted to the outer contour of the four output optical cables. A crimping guide groove 90101 is provided on the outside of the four-core crimp sleeve 901, which extends along the extension direction of the output optical cables. After the four-core crimp sleeve 901 is fitted onto the output optical cables, a crimping tool is used to press the four-core crimp sleeve 901 along the crimping guide groove 90101, so that the four-core crimp sleeve 901 is firmly pressed onto the output optical cables. After crimping with the four-core crimp sleeve 901, each output optical cable has a large contact area with the four-core crimp sleeve 901, ensuring crimping strength and improving the optical cable layout density. In other embodiments, the four-core optical component 9 can be replaced with an optical component composed of other numbers of output optical cables.

[0049] The fixing member 701 is provided with multiple optical component mounting slots 70105 for nesting the four-core crimp sleeve 901 in the four-core optical component 9, thereby fixing the output optical cable in the four-core optical component 9. In this embodiment, the fixing member 701 is provided with six optical component mounting slots 70105, and every two optical component mounting slots 70105 form an optical component mounting slot group. Three optical component mounting slot groups are arranged sequentially from the front end to the rear end on the fixing member 701, and the positions of the three optical component mounting slot groups are staggered from each other in a direction perpendicular to the plane of the fixing member 701. In this embodiment, the positions of the three optical component mounting slot groups gradually decrease from the front end to the rear end, and the three optical component mounting slot groups are sequentially designated as a primary optical component mounting slot group, a secondary optical component mounting slot group, and a tertiary optical component mounting slot group from the front end to the rear end. The primary optical component mounting slot group and the secondary optical component mounting slot group are provided with slots for optical fibers to pass through, so that multiple optical fibers can pass through the slots and connect to the output optical cable in the corresponding four-core optical component.

[0050] In other embodiments of the present invention, there may be multiple optical component mounting slots 70105 on the fixing member 701, corresponding to the number of optical components, and they may be staggered in various directions such as front and back, up and down, left and right, so that the optical fiber can be connected to the corresponding optical component and the output optical cable in the optical component can extend out of the fixing member.

[0051] Through holes are provided on the fixing parts 701 on both sides of the primary optical component mounting slot. After the two four-core optical components 9 are embedded into the corresponding optical component mounting slots 70105 in the primary optical component mounting slot, the primary pressure plate 703 is used to cover the primary optical component mounting slot. The primary pressure plate 703 is provided with threaded holes corresponding to the through holes on both sides of the primary optical component mounting slot. After the primary pressure plate 703 is installed in place, screws are used to pass through the through holes on both sides of the primary optical component mounting slot and screwed into the screw holes on the primary pressure plate 703 to fix the primary pressure plate 703 on the fixing parts 701 and press the corresponding four-core optical components.

[0052] Threaded holes are provided on the fasteners 701 on both sides of the secondary optical component mounting slot. After the two four-core optical components 9 are embedded into the corresponding optical component mounting slots 70105 in the secondary optical component mounting slot, the secondary pressure plate 704 is used to cover the secondary optical component mounting slot. The secondary pressure plate 704 is provided with through holes corresponding to the threaded holes on both sides of the secondary optical component mounting slot. After the secondary pressure plate 704 is installed in place, screws are passed through the through holes on the secondary pressure plate 704 and screwed into the threaded holes on both sides of the secondary optical component mounting slot to fix the secondary pressure plate 704 and press the corresponding four-core optical components.

[0053] Through holes are provided on the fasteners 701 on both sides of the three-level optical component mounting slot. After two four-core optical components 9 are embedded into the corresponding optical component mounting slots 70105 in the three-level optical component mounting slot, a three-level pressure plate 706 is used to cover the three-level optical component mounting slot. The three-level pressure plate 706 has through holes corresponding to the positions of the through holes on both sides of the three-level optical component mounting slot. Then, a three-level fastening cover 705 is used to press on the three-level pressure plate 706. A space is left between the three-level fastening cover 705 and the three-level pressure plate 706 for optical cables from other four-core optical components to pass through. The three-stage fastening cover 705 is provided with threaded holes corresponding to the through holes on the three-stage pressure plate 706. After the three-stage fastening cover 705 is pressed onto the three-stage pressure plate 706, screws are used to pass through the through holes on the fastener and the through holes on the three-stage pressure plate in sequence, and then screwed into the threaded holes of the three-stage fastening cover 705, thereby fixing the three-stage fastening cover 705 and pressing the three-stage pressure plate 706, the four-core optical component, and the optical cables in the other four-core optical components.

[0054] After the three-level fastening cover 705 is fixed, it forms a cylinder with the corresponding part of the fastening part 701. The three-level fastening cover 705 is provided with a slot for the four-core optical component to pass through.

[0055] An output-end clustering slot 70106 is provided on the fixing component near the rear end. The opening of the output-end clustering slot 70106 is located on the plane of the fixing component 701, with one end located on the end face of the fixing component 701 and the other end connected to the three-level optical component mounting slot group. The three-level fastening cover 705 is provided with a slot that matches the output-end clustering slot 70106. After the three-level fastening cover 705 is installed, the slot on it and the slot on the output-end clustering slot 70106 form a hole for the output optical cable to pass through.

[0056] An input end protective component 4 is installed on the front side of the fastener 701. The input end protective component 4 includes an armored bundle tube 401, a protective crimp sleeve 402, and an input end flange 403. Threaded holes are provided on the front end face of both the fastener 701 and the input end fastening cover 707 for installing the input end flange 403. The rear end face of the input end flange 403 is attached to the front end face of the fastener 701 and the input end fastening cover 707. A screw is then passed through the through hole on the input end flange 403 and screwed into the threaded hole on the front end face of the fastener 701 and the input end fastening cover 707, thus fixing the input end flange 403 to the fastener and the input end fastening cover. The armored bundle tube 401 is sleeved on the input end optical cable 1 and passes through the input end flange 403. Trapezoidal grooves are arranged along the front-to-back direction inside the input end flange 403 for engaging with the trapezoidal threads on the armored bundle tube 401. The rear end of the armored bundle tube and the front end of the input flange 403 are pressed and fixed using the protective crimp sleeve 402 to improve the reliability of the product.

[0057] The front end face of the fastener 701 is also provided with a positioning key 70107, and the inner wall of the front end of the sleeve 5 is provided with a keyway 502. After the sleeve 5 is sleeved on the outside of the fastener 7, the positioning key 70107 and the keyway 502 cooperate. Multiple circumferential binding and fixing grooves 501 are distributed along the length of the outer wall of the sleeve 5.

[0058] An output end protection component 6 is installed on the rear side of the fixing component 701. The output end protection component 6 includes an output end flange 601, a spring 602, and a gasket 603. The output end optical cables of each four-core optical component pass through the fixing component 7 and are protected by the output end protection component 6. The spring 602 is sleeved on the output end optical cable 3 and passes through the output end flange 601. The outer wall of the output end flange 601 is threadedly connected to the sleeve 5 sleeved on the outside of the fixing component 7. A gasket 603 is placed between the front end face of the output end flange 601 and the rear end face of the fixing component 701, and the front end of the spring 602 is bent and placed between the gasket 603 and the front end face of the output end flange 601, thus fixing the spring 602. After the output end flange 601 is threadedly connected to the sleeve 5, the spring 602, the gasket 603, and the fixing component 701 are compressed. The output end optical cable 3 is protected by the spring 602, which can limit the bending radius of the output end optical cable and improve the reliability of the product. In other embodiments, spring 602 may be replaced with other elastic protective components that can be fitted onto the output optical cable 3.

[0059] The optical cable used in this invention is an armored optical cable, and multi-core optical cable crimping technology is adopted. Every four optical cables share a four-core crimping sleeve, which improves the arrangement density of the optical cable. Multiple four-core crimping sleeves are arranged in a staggered manner in the front-back, up-down, and left-right directions to maximize the utilization rate of length and outer diameter dimensions, making the encapsulated sleeve size smaller. Therefore, this invention has a small size and high optical cable arrangement density.

[0060] The input optical cable is fitted with an armored bundle tube, and a protective crimp sleeve is used to crimp and fix the armored bundle tube, improving reliability. The output optical cable is fitted with a spring to limit the bending radius of the output optical cable, further improving reliability. The optical cable is fixed using a four-core crimp sleeve, avoiding the failure of the potting compound. The structure of the four-core crimp sleeve is tightly adapted to the optical cable, and the four-core crimp sleeve is equipped with a crimping guide groove to facilitate crimping operations. After crimping, each optical cable and the four-core crimp sleeve have a large contact area, ensuring crimping strength. In this embodiment, the crimping strength of the Φ1.4 armored optical cable can reach over 70N. Key processes such as the installation and fixing of the optical splitter, fiber optic cable routing, installation and fixing of the input optical cable, and installation and fixing of the four-core optical components are visualized, eliminating blind spots and avoiding increased loss or fiber breakage caused by blind spots in the assembly of the splitter structure. The optical splitter component has a small, circular structure, avoiding damage to the optical cable from the edges and corners of the optical splitter component during the bundling process, improving system reliability. Therefore, this invention has higher reliability.

[0061] The optical splitter connects to the input optical cable. The optical fiber of the optical splitter is inserted into the four-core optical component and connected to the output optical cable. The optical splitter and the four-core optical component are nested in the corresponding positions in the fixing component. The corresponding first-level pressure plate, second-level pressure plate, third-level pressure plate, etc., input end fastening cover, third-level fastening cover, etc., and fixing cover are installed to fix the optical splitter and the four-core optical component. The internal assembly of the optical splitter component is completed. Then, the fixed optical splitter, four-core optical component and fixing component are inserted into the sleeve. The input end protection component and output end protection component at both ends are installed to complete the overall assembly. The assembly process is simple, has no blind spots, and is easy to operate.

[0062] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. An online small-structure optical splitter assembly, comprising an input optical cable (1) at the front end, an optical splitter (8), and an output optical cable (3) at the rear end, characterized in that: It also includes a fixing component (701) and multiple optical components. The fixing component (701) is provided with optical device mounting slots (70103) and optical component mounting slots (70105) arranged from front to rear. Multiple optical component mounting slot groups are arranged sequentially from front to rear on the fixing component (701). Each optical component mounting slot group includes several optical component mounting slots (70105) arranged horizontally. The positions of the multiple optical component mounting slot groups are staggered in a direction perpendicular to the arrangement direction of the optical component mounting slot groups. The optical device mounting slot (70103) is nested with an optical splitter (8). Each optical component includes several output optical cables (3). The several output optical cables (3) in each optical component are crimped by a crimp sleeve and the crimp sleeve is nested in the corresponding optical component mounting slot (70105). The mounting slot (70105) is covered and the corresponding pressure plate is fixed. One end of the optical splitter (8) is connected to the input optical cable (1), and the optical fiber at the other end is connected to the corresponding output optical cable (3). The fixing part (701), the optical splitter (8), and the optical component are fitted with sleeves (5). The input optical cable (1) and the output optical cable (3) are respectively fixed at both ends of the fixing part (701). The rear end of the fixing part is provided with an output clustering slot (70106). The output optical cable (3) passes through the output clustering slot (70106). The output clustering slot (70106), the optical component mounting slot (70105) near the output clustering slot (70106), the output optical cable (3), and the corresponding pressure plate are covered and fastened, and the fastened cover is fixed on the fixing part (701).

2. The online small structure optical splitter assembly according to claim 1, characterized in that: The optical device mounting slot (70103) is covered with a fixing cover plate (702).

3. The online small structure optical splitter assembly according to claim 1, characterized in that: The optical fiber at the output end of the optical splitter (8) passes through the fiber distribution area (70104) on the fixing member (701) and is connected to the corresponding output optical cable (3).

4. The online small structure optical splitter assembly according to claim 1, characterized in that: The front end of the fixing member (701) is provided with an input end clustering groove (70101) and a positioning structure (70102). An input end crimping sleeve (708) is sleeved on the input end optical cable (1). The input end optical cable (1) is nested in the input end clustering groove (70101). The input end crimping sleeve (708) is nested in the positioning groove of the positioning structure (70102). An input end fastening cover (707) is covered on the input end clustering groove (70101) and the positioning structure (70102), and the input end fastening cover (707) is fixed on the fixing member (701).

5. An online small-structure optical splitter assembly according to claim 4, characterized in that: The front end of the fastener (701) and the input end fastening cover (707) is provided with an input end flange (403). An armored bundle tube (401) is sleeved on the input end optical cable (1). The armored bundle tube (401) passes through the input end flange (403) and is threadedly connected to the input end flange (403). A protective crimp sleeve (402) is provided on the rear end of the armored bundle tube (401) and the outer side of the front end of the input end flange (403).

6. An online small structure optical splitter assembly according to claim 1, characterized in that: The sleeve (5) is connected to the output flange (601) at the rear end. An elastic protective element is sleeved on the outside of the output optical cable (3) and the elastic protective element passes through the output flange (601). A gasket (603) is provided between the front end face of the output flange (601) and the rear end face of the fixing member (701). The front end of the spring (602) is bent and placed between the gasket (603) and the front end face of the output flange (601). After the output flange (601) and the sleeve (5) are connected by threads, the spring (602), the gasket (603) and the fixing member (701) are pressed together.

7. An online small structure optical splitter assembly according to claim 1, characterized in that: The front end face of the fastener (701) is provided with a positioning key (70107), and the inner wall of the front end of the sleeve (5) is provided with a keyway (502), and the positioning key (70107) is nested in the keyway (502); the outer wall of the sleeve (5) has multiple circumferential binding and fixing grooves (0501) distributed along the length direction.

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